/**
 * Copyright 1999-2014 dangdang.com.
 * <p>
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * <p>
 * http://www.apache.org/licenses/LICENSE-2.0
 * <p>
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.roytrack.kryo.factory;

import com.esotericsoftware.kryo.Kryo;

import java.util.Queue;
import java.util.concurrent.ConcurrentLinkedQueue;

/**
 * @author lishen
 */
public class PooledKryoFactory extends KryoFactory {

  private final Queue<Kryo> pool = new ConcurrentLinkedQueue<Kryo>();

  @Override
  public void returnKryo(Kryo kryo) {
    pool.offer(kryo);
  }

  @Override
  public void close() {
    pool.clear();
  }

  public Kryo getKryo() {
    Kryo kryo = pool.poll();
    if (kryo == null) {
      kryo = createKryo();
    }
    return kryo;
  }
}
